103420243 has 4 divisors (see below), whose sum is σ = 104729440. Its totient is φ = 102111048.

The previous prime is 103420183. The next prime is 103420267. The reversal of 103420243 is 342024301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103420243 - 2²⁵ = 69865811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 103420243.

It is not an unprimeable number, because it can be changed into a prime (103420043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 654480 + ... + 654637.

It is an arithmetic number, because the mean of its divisors is an integer number (26182360).

Almost surely, 2^103420243 is an apocalyptic number.

103420243 is a deficient number, since it is larger than the sum of its proper divisors (1309197).

103420243 is an equidigital number, since it uses as much as digits as its factorization.

103420243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1309196.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 103420243 is about 10169.5743765410. The cubic root of 103420243 is about 469.3914608031.

Adding to 103420243 its reverse (342024301), we get a palindrome (445444544).

The spelling of 103420243 in words is "one hundred three million, four hundred twenty thousand, two hundred forty-three".